55623344445 has 48 divisors (see below), whose sum is σ = 98583696432. Its totient is φ = 29002122240.

The previous prime is 55623344443. The next prime is 55623344449. The reversal of 55623344445 is 54444332655.

55623344445 is a `hidden beast` number, since 5 + 562 + 3 + 3 + 4 + 44 + 45 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 2460358404 + 53162986041 = 49602^2 + 230571^2 .

It is not a de Polignac number, because 55623344445 - 2¹ = 55623344443 is a prime.

It is a super-2 number, since 2×55623344445² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 55623344445.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55623344443) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 628687 + ... + 711683.

It is an arithmetic number, because the mean of its divisors is an integer number (2053827009).

Almost surely, 2^55623344445 is an apocalyptic number.

It is an amenable number.

55623344445 is a deficient number, since it is larger than the sum of its proper divisors (42960351987).

55623344445 is a wasteful number, since it uses less digits than its factorization.

55623344445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83342 (or 83339 counting only the distinct ones).

The product of its digits is 3456000, while the sum is 45.

The spelling of 55623344445 in words is "fifty-five billion, six hundred twenty-three million, three hundred forty-four thousand, four hundred forty-five".